package com.boyan.gateway.filter;

import lombok.extern.slf4j.Slf4j;
import org.springframework.cloud.gateway.filter.GatewayFilterChain;
import org.springframework.cloud.gateway.filter.GlobalFilter;
import org.springframework.core.Ordered;
import org.springframework.http.server.reactive.ServerHttpRequest;
import org.springframework.stereotype.Component;
import org.springframework.web.server.ServerWebExchange;
import reactor.core.publisher.Mono;

@Slf4j
@Component
public class RtGlobalFilter implements GlobalFilter, Ordered {
    @Override
    public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {
        ServerHttpRequest request = exchange.getRequest();
        String uri = request.getURI().toString();
        long start = System.currentTimeMillis();

        log.info("请求{}开始:时间{}",uri,start);
        Mono<Void> filter = chain
                .filter(exchange)
                .doFinally((result)->{
                    //后置逻辑
            long end = System.currentTimeMillis();
            log.info("请求{}结束:时间{},耗时:{}ms",uri,end,end-start);
        });
        return filter;
    }

    @Override
    public int getOrder() {
        return 0;
    }
}
